Mariusz Pietrzyk

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The Effective Exe...
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Managing Oneself
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Man's Search for ...
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See all 12 books that Mariusz is reading…
Albert Einstein
“If my theory of relativity is proven successful, Germany will claim me as a German and France will declare me a citizen of the world. Should my theory prove untrue, France will say that I am a German, and Germany will declare that I am a Jew.”
Albert Einstein

296303 Ragnarson Book Club — 22 members — last activity Jan 08, 2020 06:45AM
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153 books | 103 friends

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Bartek ...
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Kacper ...
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Marek P...
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